Not when there's any kind of population density.

Natural monopolies aren't intrinsically changed by demand.....

But what are those insurance companies processing?

It's not the insurance company that is doing the processing. It's the hospitals, they have to hire more and more billing agents just to extract the money that the insurance has already agreed to pay.

special deals" so the agents can get a bonus

Lol, no. By "special deals" you mean 20% less than the Medicare allowable, and if you don't agree then you are no longer in network.

Hospitals inflate prices so they have room to make cuts so the insurance sales people feel like they're winning.

No, they inflate the prices so that when insurance companies ask for less money it doesn't bankrupt the hospital.

The problem here isn't with the nature of insurance, but the collusion between insurance companies and care providers.

You have no idea what you are talking about about...... I'm a provider at a hospital, specializing in orthopedics and rehabilitation. I've never spoken to an insurance agent about pricing. That's not how it works.

Medical suppliers want a piece of the action too. That's why we get things like insulin prices going up:

Those are pharmaceutical companies, not medical suppliers, they are billed under completely different systems.....

Also, the reason insulin pricing is so high is because Medicare isn't allowed to barter for pricing, largely in part because it would be unfair to private insurance companies who have smaller subscriber groups.

we eliminate private insurance, you just change the private collusion to public collusion, and instead of middle managers getting paid in the public sector, you get political favors to keep prices high (e.g. campaign donations). Moving insurance from private to public just moves money from one pocket to another.

Oh yeah, I forgot how every medical system on the planet was completely fraudulent...... Oh wait, nope, mainly just America.

The biggest way to improve pricing is by group bartering, which is how every other 1rst world nation pays less for medical equipment, treatment and prescription cost than the US.

Again, nothing you said was accurate, and anyone who takes it as so is now dumber than when they began reading. Please stop spreading misinformation about fields of study you do not specialize in.